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BRICK MACHINE.

Patented Mar. 22, 1887'.

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B. J. WILSON.

BRIGK MACHINE.

No. 359,655. Patented Mar. 22, 1887.

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B. J. WILSON.

BRICK MACHINE.

N0. 359,555. Patented Mar, 22, 1887;

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' UNITED STATES PATENT @FFIGE.

BENJAMIN J. \VlLSON, OF ATLANTA, GEORGIA.

BRICK-MACHINE.

SPECIFICATION forming part of Letters Patent No. 359,655, dated March22, 1887.

Application filed June 30, 1886. Serial No. 206,753.

To all whom it may concern.-

Be it known that I, BENJAMIN J. WrLsoN, a subject of Her Majesty theQueen of Great Britain, residing at Atlanta, in the county of Fulton andState of Georgia, have invented a new and useful Brick-Machine; and I doherebydeclare the following to be a full, clear, and exact descriptionof the invention, such as will enable others skilled in the art to whichit appertains to make and use the same, reference being had to theaccompanying drawings, and to letters or figures of reference markedthereon, which form a part of this specification.

This invention relates to that class of brick machines in which thebricks are molded from comparatively dry clay, cohesion being insured bypressure and it consists in the automatic charging and dischargingdevice, the

ordinary molds and dies, and improved means of operating the same, aswill be hereinafter fully described.

In the accompanying drawings, Figure I is a side view, partly insection, and in the'position in which the clay in the charger isdischarged into the molds. Fig. II is an end View in the same position.Fig. III is a horizontal section on the line A B, Fig. II, showing thecharging and discharging device and means of operating the same. Fig. IVis a section on the line X Y, showing several details. Figs. V and VIshow. the means by which chargers are started and by which the rack onthe slides is made to engage properly with the pinion.

In these figures, 1 represents the molds, and 2 the upper, and 3 thelower, dies. The upper dies project downwardly from the follower 4.sufficiently to enter the molds as far as necessary, and those on thefollower 5 project upwardly for the same purpose. The ends of thefollowers pass through slots in the sides of the frame, which isprovided on its inner side with beveled guiding-faces 6, against whichthe adjustable .pieces48, Fig. IV, which arebolted to the followers andgovern their position horizontally, slide. On the outer ends of (Nomodel.)

vided with wrists 12 and 13. The wrists 12 are connected by the pitmen14: to the wrists on the followers 4, and the wrists 13 are connected byrolling fulcrums 15 to the wrists 50 on the followers 5, the rollingfulcrums 15 being provided with boxes 16, which slide in the slots andare adjustable by the tapering keys 17.

The shafts 9 are rock-shafts, and have on their central parts the arms18 and 2l,to which are hinged, as shown, one end of each of the linksmarked 19 and 20, the outer ends being brought together and pivoted bythe pin 22. The pin 22 also passes through the slides 23 and 24. Theslides pass through an upper and lower pair of guides, 25 and 26.Between and pivoted to the upper end of these slides is the cross-head27 to which is attached the piston or connecting rod by which themachine is driven, by imparting to these slides a vertical reciprocatingmotion. Between the slides and attached to them is the rack 28, whichengages with the gear 29 on the shaft 30, and which, by means of thegears 31 on the same shaft and the racks 32 and 33,which are attached tothe chargers, gives the necessary reciprocating motion to the chargers.It being necessary to give this motion to the chargers at the time whenthe. dies 2 are out of the mold and will permit it, the rack- 28 is madeso short as to only engage wit-h the gear 29but a portion of eachstroke. As, therefore, the rack 28 is disengaged during a part of eachstroke the arm or lever 34 is attached to the shaft 30 for the purposeof starting the chargers with an easier motion and to insure that theteeth on rack and pinion will engage properly. On the slide 23 is aroller, 35, which, on the slide descending, will come in contact withthe arm or lever 34: and start the chargers with an easy motion andinsure a proper engagement of the rack 28 and the gear 29. As the upwardmovement of the rack will not bring this arm or lever to its properposition the roller 36 is provided for that purpose.

The chargers 37 are drawn inwardly by the upward movement of the rack 28and receive a supply of clay from the chutes 38. The

IOO

ers while receiving clay from the chutes. The chargers have box-shapedinteriors, preferably with one sloping side, as shown. They are alsoprovided with sloping partitions 89, for a purpose which will beexplained hereinafter. Each of the chargers has a table extending underthe chute to prevent the escape of clay from the chute while discharginginto the mold.

The wedges 40 act as bearers for the followers 5, and by longitudinalmovement adjust the height at which the followers will stop in order toallow the molds to retain the amount of clay required. The wedges aremoved by means of the right and left hand screws 41, which abut at bothends against the frame to prevent longitudinal motion, and are actuatedby the worm-gears 42, a pair of worm-gears being on each side of themachine.

The shaft 49, carrying the worms, extends across the machine and isprovided with a crank in order that the changing condition of the claymay be readily furnished with more or less room, as required. Therolling fulcrums 15 are slotted to allow the followers to stop at thedesired point, and each has an adjustable box to regulate the height towhich they will carry the follower, which will govern the thickness ofthe brick.

Pivoted to and depending from lugs on the bottom of the followers 5 arethe rolling fulcrums 43. On the rock-shafts 9 are arms 45, which carrythe rollers 46. These rollers, as the rock-shafts carry the armsonwardly, engage with the bottom ends of the rolling fulcrums 43, byreason of which the followers 5 are raised forcing the dies3 to the topof the molds and carrying the brick to the position where they may bepushed out of the mold by the front ends of the chargers, the follower 5being held atthe highest position by reason of the bottom ends of thefulcrum 43 having a circular form for a sufficient distance, the radiusbeing the same as that of the roller 46. The rolling fulcrums 43 areprevented from following the rollers beyond the desired points by theslotted links 47 and the pin in fulcrum 43, thus forcing the rollers torun off the lower ends of the fulcrums and allow the followers and thedies to drop until stopped by the wedge-shaped bearers. The rollers 46run on studs which are radially adjustable in the slots in the arms 011the rock-shafts for the purpose of regulating the height to which thedies will go in forcing the bricks out of the molds, and the links beingon studs passing through the frame are longitudinally adjustable toregulate the point at which the rollers will be forced to leave the endsof the rolling fulcrums.

Motion being imparted to the slides they would be raised from theposition shown in Fig. I, revolving the rock-shafts in the direc tionindicated by the arrow and bringing the wrists on the rock-shafts 10 and11 about in line with the wrists on the followers 4 and 5, which wouldcause the follower 4 to descend and the follower 5 to ascend and pressthe clay from under the fulcrums.

in the molds. The guides 26 keep the slides in a proper position toinsure a uniform .motion in each end of the machine. In the beginning ofthe upward movement of the slides the chargers would be withdrawn to aposition under the chutes where they would be refilled with clay, andthe rolling fulcrums would be swung outwardly by the rollers,beingallowed by the slots in the links to do so until they could pass, afterwhich they would fall back to the position shown by gravity.

The reverse or downward movement of the slides will bring the dies totheir former position, the slot in the rollingfulcrums 15 allow- V ingthe followers 5 to stop on the bearers 40, which should be adjusted tomake the molds hold the proper amount ofclay. This reverse motion willcarry the rollers 46 against the bottom ends of the rolling fulcrums 43and raise the follower 5 sufficiently to force the brick out of themolds,when the brick will be, by the outward movement of the chargers,as hereinhefore dcscribed,pushed off of the mold, after which thefollower will drop back on the bearers by reason of the rollers havingpassed The last of this downward motion will, after the chargers shallhave been slowly started by the contact of the roller 35 with the arm orlever 3i, and, by the engagement of the rack 28 and pinion 29, force thechargers with the clay that they contain to a position directly over themolds.

In charging the molds of brick-machines with reciprocatingehargers,asheretofore done, one end of the brick is softer than theother,

"from the fact that it does not receive as much clay, the tendency beingto deposit the clay in a more dense form in the end of the mold overwhich the charger is moving for the greatest length of time. Thistrouble is entirely obviated by the sloping partitions 39, as shown insection, Fig. I. It will be seen that when the charger is removed fromits position under the chute to that under the molds the clay will bepressed by its [inertia as well as by the friction of the table and thedies against the sloping faces, having a tendency to lift it and relievethe friction, and thereby prevent the packing of the clay against theback side of the charger, which packing would cause it to discharge intothe mold in a condition of uneven density. The sloping partitions alsoprovide a receptacle for agreater quantity of clay in that part of thecharger which in returning passes over the entire length of the mold, byreason of which any surplus clay in the charger, or the greater portionof it, will be carried the entire length of the mold and have a uniformeffect 011 the clay in the mold.

Having thus described myinvention,what I claim as new, and desire tosecure by Letters Patent, is

1. In a brick-machine, the combination of the molds and upper and lowerdies attached to followers 4 and 5, the pitmen 14, the rolling fulcrums15, the rock-shafts 9, having oppositely-projecting cranks 10 and 11 andarms 18 and 21, the slides 23 and 24, and the links 19 and 20,substantially as shown, and for the purpose specified.

2. In a brick-machine, as a means of regulating the holding capacity ofthe molds, the

. the pitmen 14, the rock-shaft 9, having oppositely-projecting cranks10 and 11, and the slotted rolling fulcrum 15, provided with thejournal-box 16 and adjusting-wedge 17, substantially as shown.

4. In a brick-machine, to force the pressed brick from the molds, thecombination of the molds and the dies 3 and followers 5 with the rollingfulcrums 43 and the rock-shaft 9, having arm 45 and roller 46 and thelinks 47.

5. In a reciprocating charger for brickmolds, having a box shapedinterior, the sloping partitions 39, substantially as shown, and for thepurpose specified.

6. As a means of operating the reciprocating chargers of abrick-machine,the racks 32, attached to the charger and engaging withthe pinions 31, in combination with the pinion 29 and arm 34 on thesame, and rack 28 and rollers 35 and 36, attached to the reciprocatingslides.

In testimony whereof I affix my signature in presence of two witnesses.

BENJAMIN J. WILSON.

Witnesses:

A. 1?. W001), 117. W. TURNER.

